@article{0a815b756e9844a589cd5d2769d70f80,

title = "Measurement of the B+/B0 production ratio in e+e- collisions at the ϒ (4S) resonance using B →J/ψ (ℓℓ)K decays at Belle",

abstract = "We measure the ratio of branching fractions for the ϒ(4S) decays to B+B- and B0B¯0 using B+→J/ψ(ℓℓ)K+ and B0→J/ψ(ℓℓ)K0 samples, where J/ψ(ℓℓ) stands for J/ψ→ℓ+ℓ- (ℓ=e or μ), with 711 fb-1 of data collected at the ϒ(4S) resonance with the Belle detector. We find the decay rate ratio of ϒ(4S)→B+B- over ϒ(4S)→B0B¯0 to be 1.065±0.012±0.019±0.047, which is the most precise measurement to date. The first and second uncertainties are statistical and systematic, respectively, and the third uncertainty is due to the assumption of isospin symmetry in B→J/ψ(ℓℓ)K.",

author = "{Belle Collaboration} and S. Choudhury and S. Sandilya and K. Trabelsi and A. Giri and I. Adachi and H. Aihara and Asner, {D. M.} and H. Atmacan and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and P. Behera and K. Belous and J. Bennett and M. Bessner and V. Bhardwaj and B. Bhuyan and T. Bilka and D. Bodrov and G. Bonvicini and J. Borah and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, {T. E.} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, {M. C.} and C. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Cho, {S. J.} and Choi, {S. K.} and Y. Choi and D. Cinabro and S. Das and {De Pietro}, G. and {Di Capua}, F. and J. Dingfelder and Z. Dole{\v Z}al and Dong, {T. V.} and D. Epifanov and D. Ferlewicz and Fulsom, {B. G.} and R. Garg and E. Won",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society.",

year = "2023",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.107.L031102",

language = "English",

volume = "107",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}